Type writing machine



(No Model.) 2 sheets-sheet 1.

L. P. DISS.

TYPE WRITING MACHINE.

No. 481,750. Patented Aug. 30, 1892.

mmw.

2 Sheets-Sheet 2.

L. P. DISS. TYPE WRITING MACHINE.

(No Model.)

Patented-Aug. 30, 1892.

Unitas STATES ALTENT Prion.

LOUIS P. DISS, OF ILION, ASSIGN OR TO THE REMINGTON STANDARD TYPEWVRITER MANUFACTURING COMPANY, OF NEW YORK, N. Y.

TYPE-WRITING MACHIN E.

SPECIFICATION forming part of Letters Patent No. 481,750, dated August30, 1892.

Application filed January 21, 1892. Serial No. 418,780. (No model.)

To all whom, it may concern.-

Be it known that I, LOUIS P. DIss, a citizen of the United States, and aresident of Ilion, in the county of Herkimer and State of New York, haveinvented certain new and useful Improvements in Type-WVriting Machines,of which the following is a specification.

My invention relates more particularly to that class of type-Writersemploying inkingribbons; and it consists in the various features ofconstruction and combinations of devices hereinafter more fullydescribed, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a perspective view of so muchof a type-writing machine as is necessary to exhibit my improvements,part of the top plate of the machine being broken away and the ribbonshown in dotted lines. Fig. 2 is an enlarged sectional elevation takenat the right-hand side of the machine, and showing more particularly theconstruction of the ribbon-spool thereat and the mode of mounting it andits shaft. Fig. 3 is an enlarged vertical section taken at the left-handside of the machine, and showing particularly the construction and modeof mounting of the ribbon-spool thereat. Fig. 4 is a vertical sectiontaken at the line as m of Fig. 2. Fig. 5 is a detail view to illustrateone member of the gear-tooth connection between the ribbon-moving arms,and Fig. 6 is a detail view of the other member thereof.

In the several views the same part will be found designated by the samenumeral of reference.

l is the top plate provided with downward projections or supports 2, inwhich are formed suitable bearings for the spool-shafts 3 and 4 and forthe long connecting-shaft 5, arranged at right angles to thespool-shafts. On the axis of the shaft 3 is oscillated the usualmainspring wheel 6, which is connected to and actuated alternately inopposite directions by the paper-carriage and the main drivingspring,(not shown,) as customary heretofore. To the shaft 3 is attached acombined ratchetwheel 7 and beveled gear 8, and to the mainspring wheel6 is pivoted a pawl 9, which engages the ratchet-wheel 7 in a mannersuch that the oscillation of the main-spring wheel 6 will cause thecombined ratchet-wheel and beveled gear and the shaft 3 to revolvealways in the direction indicated by thearrow at Fig. 1. To the shaft 5are fastened beveled gears 10 and 11 and a worm-gear 12. The worm 12 isconstantly engaged with a worm-wheel l3, fastened to the spool-shaft 4.The beveled gears 10 and 11 are alternately brought into engagement withthe beveled gear 8 by shifting or sliding the shaft 5 in oppositeendwise directions by hand, whereby the shaft 4 is caused to revolvealternately in opposite directions.

The spool 14 at the right-hand side of the machine is preferably made ofwood and is loosely fitted to a metallic sleeve 15, which is looselyfitted to the shaft 4 and is connected to the spool 14 by means of aspring-detent 16, which is bent at one end and forced into a hole 17 ofthe sleeve. The middle portion of the spring-detent is bent to form aprojection, which enters a hole 18 in the wooden spool far enough toprevent its turning on the sleeve and yet allows the spool and thesleeve to be easily connected and disconnected by forcing eachlongitudinally in 0pposite directions.

On the shaft 4 are arranged collars 19 and 20, which are held firmly inposition by means of set-screws 21, the collar 19 being arranged withina recess or housing at one end of the sleeve 15. The opposite end of thesleeve is reduced indiameter and provided with a coiled spring 22, whichat one end bears against a shoulder formed on the sleeve and at itsother end against a cup 23.

On the shaft 4, between the inner end of the collar 19 and the sleeve,is arranged a felt 9o washer 24, and between the inner end of the collar20 and the bottom of the cup 23 is arranged a similar felt washer 24.The pressure of the spring 22 between the collars 19 and 20 and the endsof the sleeve 15 causes the sleeve and the spool 14 to revolve with theshaft 4. It will readily be seen that the felt-washers would serve thesame purpose without the spring or the cup; but I prefer to use thespring with the washers, because it has greater elasticity and becauseby using the cup a better bearing for the felt washers is provided thanwould be obtained by the end of the spring. The spool 25 at theleft-hand side of the machine and the sleeve therefor are constructedand mounted upon the shaft 3 in the same manner that the spool 14 andits sleeve are mounted and arranged, excepting, however, that the spring22 is enough stronger than the spring 26 to cause the ribbon spool 1a torevolve with the shaft at and wind the ribbon from the spool onto thespool 14 against the resistance of the spring 26, which has onlysufficient strength to cause the spool 25 to revolve in the direction inwhich the shaft 3 revolves and wind up the ribbon which is unwound byand from the spool 14,Wl1i0l1 controls the endwise movements of theribbon in both directions. By this arrangement the spool 25 is revolvedin the opposite direction to that of the shaft 3 whenever the ribbon isbeing wound from the spool 25 to the spool let, and when the movement ofthe ribbon is reversed the spool 25 will revolve in the same directionas its shaft 3, but much slower. This peculiar operation of theribbon-spool 25, which is due to its being carried with its shaft byfriction, is an important element in my device for the widthwise as wellas thelengthwise movement of the ribbo n. The ribbon-spool 14E is alsocarried with its shaft by friction, which is not essential to its properworking, as it would work just as well if it were keyed or fastened toits shaft by other means; but I prefer to carry it by friction, so thatit may be revolved by hand without revolving its shaft, therebyfacilitating the lengthwise movement of the ribbon, as where severalcolors are fastened together to bring either of them into use.

For the purpose of effecting a lateral movement of the ribbon I pivot tothe top plate at 27 and 28 two arms 29 and 30, which are provided withribbon supports and guides 31 and 32, formed or bentinto C-shaped loops.The arm is provided with an extension 33, arranged at right angles tosaid arm, which engages the upper end of a lever 34:, pivoted at 35 to aplate 36, fastened to the top plate 1. The lower end of the lever 34 isprovided with an antifriction roll 37 to bear against a cam or eccentric38, which is connected to and is revolved with the shaft 3. Preferablythis cam 38 is made integral with the collar 20. To the post orprojection 28, at which the arm 29 is pivoted, is fastened one end of aspring 39, the other end of which is attached to the arm 29. The arms 29and 30 have a geartooth connection at 40, by which the action of thespring 39 on the arm 29 will cause the end or extension 33 on the arm 30to swing against the upper end of lever 3i and move the roll 37 againstthe cam 38. Now it will be seen that as the cam 38 is slowly revolvedwith the shaft 3 in the direction indicated by the arrow the ribbonsupports and guides 31 and 32 will swing slowly in one direction untilthe high point of the cam has passed the roll 37, when by the force ofthe spring 39 they will be quickly returned to their normal position andthe roll 37 swung from the high to the low point of the cam. Thus theribbon will be moved slowly widthwise in one direction and quickly inthe other, whereby the ribbon will receive the impressions of the typewhile moving sidewise in one direction only. It will be seen, also, thatby the worm and worm-wheel connection of the shafts 4 and 5 shaft a willrevolve much slower than the shaft 3, the purpose of which is to revolvethe ribbon-spool l l enough slower than the shaft 3 so that when the camhas made a full revolution (whereby one each of the slow and quickmovements of the ribbon are effected) the ribbon will have movedlengthwise a distance not to exceed the width of a type. Thus the linesof the type impressions across the ribbon will be oblique and parallelto one another and close together.

For the purpose of detachably securingthe shaft 4 to its bearing in thedownward projections or hook-shaped hangers of the top plate I fasten toone of the hangers a capplate 411, the lower end 42 of which is made tobear on a point of the shaft beyond the bearing of the hanger, so thatwhen the opposite end of the shaft is released the shaft will be free toswing outward. The opposite end of the shaft 4: is secured to itsbearing by a slide 43, which is movably connected to the hanger by meansof two screws 44, and is provided with a side projection 45, suitablyformed to engage an annular groove 46, formed in the shaft 4. By meansof the screws 44 I attach, also, a detent 47, which is made of thinsheet metal, and has one end 48 bent to extend over the end of the slide13 to hold it in position against any usual jar; but it is capable ofyielding to a slight pressure on the lower end of the slide, which isbent outward to form a finger-piece 49 for convenient manipulation.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a type-writing machine, the combination of an inkinga-ibbon, aribbon-spool shaft 4, arranged to revolve alternately in oppositedirections, a ribbon-spool connected to said shaft to turn therewith inwhichever direction said shaft may be rotated, a ribbon-spool shaft 3,arranged to turn always in the same direction, and a ribbon-spoolfrictionally connected to said shaft, so that it may turn either withsaid shaft or in a direction opposite to that of the rotation of saidshaft, according to the direction of rotation of the opposite shaft andspool.

2. In atype-writing machine, the combination of an inking-ribbon, aribbon-spool shaft 4:, arranged to revolve alternatelyin oppositedirections, a ribbon-spool frictionally connected to said shaft, so asto turn therewith in whichever direction said shaft may be rotated, butcapable of being turned by hand independently of said shaft, aribbon-spool shaft 3, arranged to turn always in the same direction, aribbon-spool frictionally connected to said shaft, but in a manner tohave less friction or resistance than the first-mentioned spool, so thatit may turn either with said shaft or in a direction opposite that inwhich said shaft turns, and an intermediate connecting-shafttransmittingthe motion of shaft 3 and arranged to revolve in oppositedirections and alternate the direction of revolution of the shaft 4 andits spool.

3. In a type-writing-machine, the combination of an inking-ribbon,ribbon-spool shafts 3 and 4:, ribbon-spools connected to said shafts, abeveled gear on the shaft 3, a worm-wheel on the shaft 4, and anintermediate shiftable shaft 5, provided at one end with a worm and atits other end with two beveled gears, the arrangement being such thatthe shaft 3, which rotates always in one direction, may rotate the shaft4 through the shaft 5 alternately in opposite directions. 1

4. In a type-writing machine, the combination of an inking-ribbon, aspool-shaftarranged to revolve always in one direction, a ribbon-spoolfrictionally connected to said shaft and capable of revolvingalternatelyin opposite directions, a spool-shaft arranged to have aslower movement than the first-named shaft and a movement alternately inopposite directions, and a ribbon-spool connected to said slower shaftto turn always therewith and wind and unwind the ribbon.

5. In a type-writing machine, the combination, with an inking-ribbon, apair of ribbonspool shafts, and a pair of ribbonspools, of ahorizontally-arranged pivoted arm having a ribbon-support and having aslow step-bystep movement in one direction and a quick reboundingmovement in the opposite direction.

6. In a type-writing machine, the combination, with an in king-ribbon, apair of ribbonspool shafts, and a pair of ribbon-spools, of ahorizontally-arranged pivoted arm having a ribbon-support and connectedto one of said rib Don-spool shafts in a manner to be vibrated step bystep through the rotations of said shaft.

'7. In a type-writing machine, the combination, with an inking-ribbon, apair of ribbonspool shafts, and a pair of ribbon-spools, of a pivotedribbon-carrier, a lever for moving the same, and a cam for actuatingsaid lever.

8. In a type-Writing machine, the combination, with an inking-ribbon, apair of ribbonspool shafts, and a pair of ribbon-spools, of a pivotedribbon-carrier, a driving-cam, and an of a pair of pivoted arms gearedtogether at their inner ends and provided with r1bbon guides and meansconnected with one of the spool-shafts for vibrating said arms andmoving the ribbon laterally. 11. In a type-writing machine, thecombination,with an inking-ribbon, a pair of ribbon-spool shafts, and apair of ribbon-spools, of a pair of pivoted arms geared together attheir inner ends and provided with ribbonguides, means connected to oneof the spoolshafts for vibrating said arms in one d1re ction, and aspring for vibrating said arms in the reverse direction. 12. In atype-writing machine, the combination, with an inking-ribbon andavibratory ribbon-carrier, of a pair of spool-shafts, one arranged torevolve slower than the other, and a ribbon-spool connected to each ofsaid shafts, substantially as described, whereby the lines of typeimpressions on the ribbon will be ob lique and parallel to each otherand close together.

13. In a type-writing machine, the combination of an inking-ribbon, avibratory r1bbon-carrier, a spring for moving it in one d1- rec'tion, alever and cam for moving it in the opposite direction, a ribbon-spool, ashaft for said spool, bearing said cam and revolving faster than itsspool, a second ribbon-spool, and a shaft therefor arranged to revolveslower than the first-named shaft.

14. In a type-writing machine, the combination of pivoted arms providedwith ribbonguides, a spring, the lever, the cam, and the ribbon-spools,all arranged to operate substantially as and for the purpose set forth.

15. In a type-writing machine, the co1nb1 nation, with an i-nkingribbon, of a rotating ribbon-spool shaft,a sleeve connected to saidshaft, and a spool detachably connected to said sleeve by a detentarranged between the sleeve and the spool.

16. In a type-writing machine, the combination, with an inking-ribbon,of a rotating spool-shaft,a sleeve mounted on the said shaft by means offriction devices and capable of turning independently of said shaft, anda spool detachably connected to said sleeve.

17. In a type-writing machine, the combination, with an in kin g-ribbon,of a spool-shaft, a sleeve mounted on said shaft, a pair of collarssecured to said shaft, a spring arranged to press said sleeve betweenthe said collars, and a spool connected to said sleeve.

18. In a type-writing machine, the combination, with an inking-ribbon,of a spool-shaft, a sleeve mounted on said shaft, the collars, the cup,the washers, the spring, the ribbonspool, and the spring-detent.

19. In a type-writing machine, the combination, with hangers, of ahorizontallyarranged spool-shaft and a vertically-arrangedconfining-slide for said shaft.

20. In a t'ype-writing machine, the combination, with hangers, of ahorizontally-arranged spool-shaft, avertically-arranged confining-slide,and a detent or lock for said slide.

21. In a type-writing machine, the combination, with hangers, of aspool-shaft having a groove and a confiningslide having a lateralprojection to engage said groove and pre- Vent endwise movement of theshaft.

22. In a type-writing machine, the combination, with hangers havinghookshaped bearings, ofra spool-shaft, the cap-plate 4:1, 10 arranged asdescribed, and the slide 413.

Signed at Ilion, in the county of Herkinner and State of New York, this18th day of January, A. D. 1892.

LOUIS P. DISS. Witnesses:

FRANK S. HOEFLER, A. D. RICHARDSON.

